baber/WOPTO huggingface dataset:
Patent GB-802233-A (GB)
Title: A process for the purification of adiponitrile
Filed: 1957-07-01
Abstract: Adiponitrile is purified with active carbon, preferably 0.5-2 per cent by weight.  The treatment can take place at ordinary or elevated temperatures, preferably in the range 130-180 DEG  C.  The purified adiponitrile is recovered by simple distillation or by separation of the active carbon.  The treatment can be carried out in a diluent, such as benzene, toluene, chloroform or methylene chloride, at room or elevated temperatures, preferably at the boiling point of the diluent.  The purified adiponitrile is suitable for the production of hexamethylene diamine for polyamide production.
Patent GB-370287-A (GB)
Title: Improved manufacture of motor fuels
IPC: C10L1/30
Filed: 1931-07-21
Abstract: Motor spirit is made less liable to knock and is coloured by addition of a metal compound of an organic compound of the formula <FORM:0370287/III/1> in which X is an ,OH or ,NH2 group, and R is an organic group such as an alkyl or aryl group or the rest of a cyclic radicle of which the C = O group and the carbon of the oxy - methylene or amino - methylene group linked up to the C = O group form a part.  The copper or ferric compound of oxymethylene camphor, and the copper compound of aminomethylene-acetone or of oxymethylene-acetophenone are specified.  Other antiknocking agents and substances such as halogen compounds preventing deposition of metal on the valves &c. may also be added.  In an example, the copper salt of oxymethylene camphor is added to benzine until the metal content is 0,05-0,10 per cent.
Patent GB-1219193-A (GB)
Title: Strengthened glass-ceramic articles
IPC: C03C21/00
Filed: 1968-05-02
Abstract: 1,219,193. Strengthening glass-ceramics. CORNING GLASS WORK. 2 May, 1968 [8 May, 1967], No. 20783/68. Heading C1M. A glass-ceramic SiO 2 /Al 2 O 3 /MgO/Li 2 O article, having a #-quartz stuffed with Mg<SP>++</SP> and Li<SP>+</SP> ions as primary crystal phase (P), is strengthened by contacting the surface of the unstrengthened article with Li<SP>+</SP> ions at 900-1175‹ C., thus allowing the substitution of Li<SP>+</SP> ions for Al<SP>++</SP><SP>+</SP> ions in the surface. The article contains in per cent by wt.: SiO 2 , 55-70; Al 2 O 3 , 23-55; MgO, 1-5; Li 2 O, 1-3; and ZrO 2 , 3-7; these oxides totalling # 95%. Other compatible components may be added up to 5% in total, e.g. P 2 O 5 , ZnO, B 2 O 3 , CaO, Na 2 O, or K 2 O. The strengthened article has tensile stress in the interior (A) and compressive stresses in a surface layer (B); in phase P, [Li<SP>+</SP>] in (B) > [Li<SP>+</SP>] in (A), and [Al<SP>+++</SP>] in (A) > [Al<SP>+++</SP>] in (B). Layer (B) may be # 5 m. deep. The ion-exchange may be performed in a bath of molten Li 2 SO 4 , the articles being preheated to about 900‹ C. The glass-ceramic articles for treatment by ion-exchange are produced by melting a batch; forming a glass article by cooling to below the transformation range, which is in the vicinity of the annealing point, i.e. 675-800‹ C., and simultaneously shaping; heat treating by heating to 750-1200‹ C. to nucleate and crystallize; and cooling to room temperature. Preferably after the nucleation heat-treatment, the glass is heated above the softening point to cause rapid growth of of crystals on the nuclei. There may be one or more dwell periods in the nucleation temperature range to produce more crystal sites, thus precluding the development of random large crystals. Preferably the articles are maintained at 750-850‹ C. for 2-10 hours. and then at 900-1200‹ C. for 2-8 hours. Reference has been directed by the Comptroller to Specification 1,105,433.
Patent GB-1500019-A (GB)
Title: Glassware forming machines
IPC: C03B9/16
Filed: 1975-05-16
Abstract: 1500019 Neck ring arrangements EMHART INDUSTRIES Inc 16 May 1975 [26 June 1974] 20812/75 Heading C1M The neck ring mechanism for transferring glass parisons from a forming to a treating station comprises left hand and right hand neck ring arms in which are slidably fitted cartridges held by a quick release mechanism. In Fig. 1 the neck ring arms 12 and 14 for use in a triple gob IS machine, mould segments 30, 32 are clamped in cartridges 36, 38 (e.g. by a screw (Fig. 4, not shown)) which are slid into channels defined by surfaces 13 and 15 of the neck ring arms where they are held by latches 50 co-operating with pins 52 and accurately located by pins 54.
Patent GB-409310-A (GB)
Title: Improvements in or relating to the treatment of silicon steels and the improved silicon steels
IPC: C21D1/78
Filed: 1932-07-23
Abstract: 409,310. Altering molecular structure by mechanical treatment. FREELAND, E. M., 1625, Ohio Avenue, Youngstown, Ohio, U.S.A. July 23, 1932, No. 20859. Convention date, Feb. 18. Drawings to Specification. [Class 83 (iv).] Cold rolling.-In a method of treating silicon steels, especially those containing 0.3-6.0 per cent of silicon, to improve their electrical properties, a hot rolled strip is subjected to a cold working operation to reduce its thickness and introduce excessive strain therein, is then heat treated to remove partially the said strain and then annealed and/or treated so as to preclude any coil set in the finished product. The cold working is carried out to obtain a minimum reduction of approximately 10 per cent, and may be carried out after a hot rolled strip is annealed and before the heat treatment.
Patent GB-931884-A (GB)
Title: Planetary drive transmission device
Inventor: LAMBURN ALAN SALISBURY
IPC: F16H61/02
Filed: 1961-06-09
Abstract: 931,884. Cone brakes. AUTO TRANSMISSIONS Ltd. May 15, 1962 [June 9, 1961], No. 20875/61. Class 103 (1). [Also in Group XXIV] In an epicyclic change-speed gear comprising sun, ring and planet gears in which a brake member is moved to couple two elements together for direct drive or to brake one element for drive at the ratio of the gearing, the brake member is moved by fluid-pressure against a bias force for the higher ratio and by the bias force against a reduced fluid pressure for the lower ratio. In a vehicle over-drive gearing, following a conventional change speed and reverse gear-box, an input shaft 10 drives a planet carrier 16 having planets 17 meshing with a ring gear 19 integral with an output shaft, and with a sun gear 20 freely rotatable on the shaft 10. A conical brake and clutch member 24 is moved axially by fluid pressure in a cylinder 35 against bias springs 31 to engage a lining 26 with a cone brake ring 28 to hold the sun gear for overdrive and is moved by the bias springs 31 to engage a coned outer surface 27 of the ring gear for direct drive. A ratchet clutch 42 prevents over-running of the input shaft. Closure of a valve 45 causes pressure from a pump P, driven from the input shaft, to actuate the piston 34 at a pressure determined by a relief valve 41 for over-drive. Opening of the valve 45 reduces the line pressure to that determined by a relief valve 44, allowing springs 31 to engage the clutch 24, 27 with a force determined by the springs 31 acting against the lowered fluid-pressure in the cylinder 35. For reverse full spring force engagement is produced by opening of a valve 47. In a second embodiment, similar gearing is used to provide direct and under-drive ratios.
Patent GB-215303-A (GB)
Title: Improvements in or relating to rollers for use in spinning frames and like textile machines
IPC: D01H5/74
Filed: 1923-08-20
Abstract: 215,303. Armstrong Cork Co., (Assignees of Busch, H. F.). May 2, 1923, [Convention date]. Rollers. - The rollers 4 of a spinning or like machine are provided with covers 5 of compressed artificial cork, the said covers being formed of cork granules and a binding-agent. the cork granules being compressed in a direction D parallel to the axis of the roller so as to reduce them to disc shape. The covers 5 are formed separately from the rollers and are cemented thereto.
Patent GB-369121-A (GB)
Title: Improvements in or relating to the doors of gas generating and coke ovens
IPC: C10B25/16
Filed: 1931-07-24
Abstract: 369,121. Coke oven doors. LIMBERG, H. J., 3, Olgastrasse, Essen, Ger many. July 24, 1931, No. 21228. Conven tion date, Oct. 29, 1930. [Class 123 (i).] A coke oven door c is provided at its rim with an asbestos rope packing g for making a gas tight joint with the door frame b. This rope is partly enclosed in a thin metal sheath f with which it is faced at the part abutting the door frame, and in a flange e which extends between the door and the rope, but leaves a portion g<1> of the inside surface of the rope in direct contact with the door. An adjustable frame h of L-section is fixed to the door flange.
Patent GB-1253567-A (GB)
Title: Process for production of tetrahydrofuran polymers
Inventor: DUNLOP ANDREW PATERSON
IPC: C08G65/20
Filed: 1969-04-28
Abstract: 1,253,567. Polymerizing tetrahydrofuran. QUAKER OATS CO. 28 April, 1969, No. 21632/69. Heading C3R. A process for polymerizing tetrahydrofuran comprises: (1) contacting tetrahydrofuran and a tetrahydrofuran polymerization catalyst' at an average contacting temperature between 20‹ and 80‹ C., thereby forming a catalytically active mixture; (2) cooling the mixture to below the cooling threshold temperature, said cooling threshold temperature being defined as 5‹ C. below maximum contacting temperature when the maximum is up to 37‹ C., and said threshold temperature is defined as 32‹ C. when the maximum contacting temperature is above 37‹ C.; (3) maintaining the mixture resulting from step 2 at a temperature below the threshold temperature for a period of time up to four hours; (4) admixing the mixture resulting from step 3 with a catalytic activity terminating agent in more than a stoichiometric amount based on its reaction with the catalyst; and (5) maintaining the temperature of the mixture resulting from step 4 below the threshold temperature until the catalytic activity is the time interval from the beginning terminated, of the contacting step 1, to the reaching of the threshold temperature in step 2, being up to 240 minutes when the average contacting temperature is up to 50‹ C., and for an average contacting temperature between 50‹ C. and 80‹ C. is from 240 minutes at 50‹ C to 1 minute at 80‹ C. Catalysts which may be used are (ClSO 3 H); (FSO 3 H); (HClO 4 ); (H 2 S 2 O 7 ); (H10 3 ); (SbCl 5 ); (SnC14); (BF 3 ); (PF 5 ); (Li<SP>+</SP>PF<SP>-</SP> 6 ); Lewis acids mixed with epoxides, acid anhydrides or compounds containing active halogen; strong acids mixed with acid anhydrides; inorganic acid anhydrides mixed with inorganic esters or acid halides; carbonium compounds; diazonium compounds; and tertiary oxonium compounds. In examples tetrahydrofuran is polymerized using fluosulphonic acid as catalyst.
Patent GB-987201-A (GB)
Title: Improved electronic memory attachment for accounting machines or the like
Inventor: DIAMANT HENRI BRENDER
IPC: G06F15/08
Filed: 1963-05-30
Abstract: 987, 201. Digital electric calculators; counters. H. R. B. SINGER Inc. May 30, 1963, No. 21714/63. Headings G4A and G4C. An attachment for a punched-card accounting machine provides a memory unit (such as a magnetic drum store), electronic accumulators, and associated addressing and control circuitry so that by plug-board attachment to the mechanical accounting machine the power of the latter may be increased. By using the memory unit to operate only on numbers, it may be arranged to call up data from a selected drum address specified by certain punched-card columns for accumulation during the latter part of the accounting machine cycle when the O, X, and Y punched-card positions are being read, so that no lengthening of the machine cycle is necessary. Transistor flip-flop circuits are described for use in binary-coded decimal counters &c., and control and coding circuitry for the unit is described and illustrated. Fig. 5b illustrates a binary cascade counter of four stages A-D modified to return to zero after ten input pulses. It counts normally up to 4 (C set, B and A reset) and the next pulse sets A so that its "1" output resets C and thus sets D; the "1" output of D then sets B so that the counter registers what would normally be regarded as shown.
Patent GB-257942-A (GB)
Title: Device for holding the sheets to be printed on platen printing presses
IPC: B41F1/28
Filed: 1926-09-03
Abstract: 257,942. Basista, C. Sept. 5, 1925, [Convention date]. Sheet.registering devices.-An arrangement f o r holding a sheet of paper 20,Fig. 1, to be printed, on the platen 22 of a printing - press, comprises a tearoff pad of thin sheets of paper 15 secured to the platen, on the uppermost sheet of which are secured two metal clips serving to hold and register the sheet 20. Each clip consists of an upper plate 5, Fig. 7, grooved centrally at 6 to receive a steel tongue 14, and a lower plate 1 having a bevelled edge 2 corresponding to bevelled edges. 9 on the plate 5. The plate 2 has two projecting. pins 3, 4 engaging in holes in the plate 5, the pin 4 being threaded so that the plates can be clamped together by a nut 13. The sheets 15,. Fig. 1, are provided with two vertical slots 19 along which the clips san be adjusted by loosening the nuts 13, the plates 1, 5 being on opposite sides of the sheet. Each tongue 14, Fig. 7, is bent upwardly so that it serves to hold the sheet 20 against the platen.
Patent GB-518611-A (GB)
Title: Improvements in or relating to the treatment of liquid distillery residues
IPC: C11D19/00
Filed: 1938-07-21
Abstract: 518,611. Alkali metal compounds ; glycerine. BAUDOT, J. July 21, 1938, No. 21731. Convention date, July 21, 1937. [Classes 1 (ii) and 91] Vinasse is concentrated and treated with sulphuric or other acid to coagulate gums and colloids, which are filtered off. The filtrate is further concentrated until potassium salts crystallize, and is again filtered. Lime is added to the liquid to precipitate calcium salts, which are filtered off, and glycerine is extracted from the residual liquid by distillation, extraction with a solvent &c. The solid products from the several stages may be mixed together and used as fertilizer. In a modification, lime is added immediately after the first filtration, and the mixture is further concentrated and filtered.
Patent GB-781921-A (GB)
Title: Improvements in or relating to apparatus for feeding sheets, such as labels
Inventor: SHERRINGTON JOHN EUSTACE
IPC: B65C3/20
Filed: 1954-07-26
Abstract: 781,921. Feeding sheets. PURDY MACHINERY CO., Ltd. July 26, 1955 [July 26, 1954], No. 21749/54. Class 100(1) [Also in Group XV] A machine for feeding a series of sheets to a series of objects fed in series to a location which is situated on a conveyer, includes a gripper mounted on the conveyer in juxtaposition to the said location to circulate therewith, a sheet carrier comprising a magazine which circulates along a predetermined path, means for causing the gripper to have an adhesive affinity for the sheets and causing the gripper periodically to make contact with a sheet which is then removed from the magazine, adhering to the gripper, and means for transferring the separated sheet to an object while it is situated at the said location on the conveyer. As described, the apparatus is for applying strap labels over bottle corks, &c. (see Group XV), the bottles B being fed by a conveyer 18 on to a uniformly rotating table 1 which has eight stations to accommodate eight bottles. A second table 90 carries eight label magazines M. and this is uniformly rotated in the opposite direction to the table 1 such that the same magazine always co-operates with the same station where a label is extracted by a gripper 2 and carried away to a position Z where the label is applied to the bottle. The tables 1, 90 are secured, respectively, to shafts 41, 74 driven by a motor such that the outermost labels in the magazine travel at the same peripheral speed as the operational parts of the grippers 2. Sheet-separators. A spider 42 secured to the driving shaft 41 of the horizontal table 1, and spaced vertically above the table, has eight radial arms formed with bifurcations 43 to provide eight bottle stations such as X. Y. Z. At each station, a gripper 2 is secured to a horizontal spindle 44 which is adapted to be rocked oy a fixed cam 3, Fig. 3, which acts through a rocker shaft 53, rod 50, and an arm 46 secured to the spindle 44. Operative faces 59 of the gripper 2, to which adhesive has previously been supplied by engagement with a roller 70, meet the corresponding label magazine M, extract the end label, and are then rocked about the spindle 44 to swing the label inwardly and downwardly to a horizontal position at station Y. A plunger then presses the label on the top of the bottle, and the gripper 2 is returned to the position shown in Fig. 3 at station Z. Pile supports. The table 90 secured to the rotating shaft 74 is formed with eight radial projections 91 on each of which are mounted rails, such as 93, provided with end claws 79 to retain a pile of labels. The pile is urged towards the claws 79 by a presser plate 99 secured on a horizontal rack bar 100 meshing with a pinion which is constrained to rotate by its engagement with a second rack bar which is vertical and weighted. The table 90 is rotated at a uniform speed so that each label pile meets the same label gripper 2 on the spider 42. Specification 779,342 is referred to.
Patent GB-1517941-A (GB)
Title: Stepping mechanism for actuating a programming control for a machine
IPC: G05G21/00
Filed: 1975-05-21
Abstract: 1517941 Variable speed ratchet gearing INDUSTRIAS COPRECI SCI 21 May 1975 [21 May 1974] 21844/75 Heading F2D [Also in Division H1] In a programmed timing mechanism, which may be used in an automatic washing machine, having a pre-arranged sequence of machine operations, a ratchet stepping device includes a constantly-driven reciprocating member carrying a pawl 21 which can be engaged with ratchet teeth on a programme drum 3, Fig. 2, and which can also be lifted out of engagement, as shown in Fig. 3, thereby leaving drum 3 stationary during a secondary delay period composed of a predetermined number of cycles of the pawl reciprocation primary interval period. A snail cam 4, Fig. 3, continuously driven in a clockwise direction, imparts motion initially in direction C to a member carrying pawls 21 and 11, which subsequently returns under spring bias to the position shown in Fig. 2. An arm 10, pivoted about the fixed axis of the snail cam 4, carries an auxiliary ratchet wheel 5 provided with various recesses 12, 14, 20, 27 of differing depths which are engaged by a pawl 11 on the reciprocating member, while the ratchet wheel 5 is from time to time moved bodily closer to, or further from, drum 3 by the action of cam follower portion 9 on the arm 10, as it rides in contact with cam protrusions 8 on a cam surface 2 carried by drum 3. The resulting motion of pawl 11 determines at any time whether pawl 21 can engage with teeth of drum 3. Particular teeth 19, Fig. 6, of exceptional depth provide an additional element of time interval through a tertiary delay period which becomes terminated only when pawl 11 sinks into a recess 20 of exceptional depth on ratchet wheel 5. Reference has been directed by the Comptroller to Specification 1,484,944.
Patent GB-634239-A (GB)
Title: Rotor blades for rotative winged aircraft
IPC: B64C27/473
Filed: 1947-08-08
Abstract: 634,239. Veneering; composite wood. AUTOGIRO CO. OF AMERICA. Aug. 8, 1947, No. 21889. Convention date, Feb. 19, 1942. [Class 145 (ii)] [Also in Group XXXIII] The rear fairing structure for a helicopter rotor blade is constructed from plywood or other mouldable material and comprises upper and lower skin panels 19 connected along their trailing edges by a member 21 and supported by longitudinally spaced formers 20. To support the skin and formers in correct relationship during the moulding process they are clamped between shaped blocks 23, 24. The leading edge of each skin panel is attached to the block 24 which is slotted to locate the formers 20 in spaced relationship, the whole. being clamped within the shaped cavity formed in the block 23.
Patent GB-1167584-A (GB)
Title: Flexible Shaft Drives
Inventor: BAILEY GEORGE DENIS
IPC: F16C1/06
Filed: 1967-05-11
Abstract: 1,167,584. Flexible shafts. FLEXIBLE DRIVES (GILMANS) Ltd. 12 June, 1968 [11 May, 1967], No. 21901/67. Heading F2U. A flexible shaft drive 4 for operating a rotary abrading brush or tool 3 from a remotely located electric motor 5 for cleaning in restricted places such as steam boiler tubes 2, incorporates a manually disengageable positive or friction clutch 6 disposed at an intermediate point in the length of the flexible shaft 4 such that it is accessible to the operator during the whole of the cleaning operation whereby the operator can at any time simply disconnect the brush 3 from the driving motor 5 to move from one tube 2 to the next or replace a worn brush or fit a different tool.
Patent GB-154999-A (GB)
Title: Improvements in and relating to cutting toothed gears
IPC: B23F1/06
Filed: 1919-09-05
Abstract: 154,999. Lewis, F. M. Sept. 5, 1919. Gear-cutting; milling-cutters.-Spur and bevel gears and racks with teeth of arcuate form are cut with both flanks of the teeth curved to the same radius by generating the involute tooth curves from the base circle by the aid of an annular cutter that generates only with the point of each tooth. In the machine forming the subject-matter of Specification 155,181, the annular cutter rotates only about its axis. The blank a is driven by a worm-wheel e mounted in a slide g and meshing with a worm f fitted with an indexing - mechanism n and d mounted on a slide h. The slides are actuated by blocks i engaging pins on a slide k adjustable in a transverse slot in a worm-wheel l. Stops g, r limit the movement. The slide k is set according to the difference between the diameters of the base circle of the wheel to be cut and the inlet circle of the wheel e. A scale may be provided to facilitate this setting. One set of flanks may be cut by a cutter o, Fig. 3, and the other by a cutter p, or both flanks may be cut by a cutter shaped as shown in Fig. 5. The internal diameter of the cutter o is equal to the extend diameter of the cutter p. A rack and pinion may be substituted for the worm-wheel e and worm f, and the indexing-mechanism may be fitted to the blank mandrel. When cutting racks, the cutter is set at a slight inclination to the work to enable the non-cutting teeth to clear. A similar inclined setting must be used when cutting wheels to mesh with such racks. Bevelgears are ananged to roll on their base cones. The mechanism may be formed as an attachment for existing machines. Lathe and like carriers.-A form of carrier d is shown in Figs. 1 and 2.